import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/login.vue'
import Home from '../components/home.vue'
import Welcome from '../components/welcome.vue'
import Users from '../components/user/users.vue'
import Rights from '../components/power/rights.vue'
import Roles from '../components/power/roles.vue'
import Cate from '../components/goods/cate.vue'
import Params from '../components/goods/params.vue'
import List from '../components/goods/list.vue'
import AddGoods from '../components/goods/add.vue'
import Order from '../components/order/order.vue'
import Report from '../components/report/report.vue'

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [{
      path: '/welcome',
      component: Welcome
    }, {
      path: '/users',
      component: Users
    }, {
      path: '/rights',
      component: Rights
    }, {
      path: '/roles',
      component: Roles
    }, {
      path: '/categories',
      component: Cate
    }, {
      path: '/params',
      component: Params
    }, {
      path: '/goods',
      component: List
    }, {
      path: '/goods/add',
      component: AddGoods
    }, {
      path: '/orders',
      component: Order
    }, {
      path: '/reports',
      component: Report
    }]
  }
]

const router = new VueRouter({
  routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to：将要访问的路径
  // from：从哪个路径跳转而来
  // next：是一个函数 ====> 1、next() 放行  2、next('路径') 强制跳转
  if(to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})

export default router
